Islanding detection in grid-connected power converters using harmonics due to the non-ideal behavior of the inverter

被引：0

作者：

Reigosa, David ^{[1
]}

Briz, Fernando ^{[1
]}

Blanco, Cristian ^{[1
]}

Manuel Guerrero, Juan ^{[1
]}

机构：

[1] Univ Oviedo, Dept Elect Comp & Syst Engn, Gijon 33204, Spain

来源：

2013 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2013年

关键词：

Active islanding detection; grid impedance measurement; dead-time; power system monitoring; distributed generation; IMPEDANCE ESTIMATION; COMPENSATION;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper analyzes the use of the voltage distortions in PWM voltage-source-inverters (VSIs) caused by the non-ideal behavior of the inverter for islanding detection purposes. The non-ideal characteristic of the inverters, mainly due to the dead-time needed to have safe commutations, produces fundamental frequency dependent harmonics (-5th, 7th...) in the output voltage. Although these harmonics are in principle an unwanted effect, since they reduce the power quality, they can potentially be used for islanding detection purposes. The physical principles of the method would be the same as for high frequency signal injection methods that have already been proposed but without the need of injecting a high frequency signal.

引用

页码：2649 / 2656

页数：8